[ticket/12953] Page title not updated when notifications are marked as read

PHPBB3-12953
Merge pull request #2855 from Geolim4/ticket/12953

[ticket/12953] Page title not updated when notifications are marked as read

* Geolim4/ticket/12953:
  [ticket/12953] Page title not updated when notifications are marked as read
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12953] Page title not updated when notifications are marked as read